| dc.contributor.author |
Minioti, KS |
en |
| dc.contributor.author |
Georgiou, CA |
en |
| dc.date.accessioned |
2014-06-06T06:50:07Z |
|
| dc.date.available |
2014-06-06T06:50:07Z |
|
| dc.date.issued |
2010 |
en |
| dc.identifier.issn |
00173495 |
en |
| dc.identifier.uri |
http://dx.doi.org/10.3989/gya.010508 |
en |
| dc.identifier.uri |
http://62.217.125.90/xmlui/handle/123456789/4969 |
|
| dc.subject |
ABTS |
en |
| dc.subject |
DPPH |
en |
| dc.subject |
Folin-Ciocalteu |
en |
| dc.subject |
Olive oil |
en |
| dc.subject |
Phenolic antioxidants |
en |
| dc.subject |
Total antioxidant capacity |
en |
| dc.subject.other |
ABTS |
en |
| dc.subject.other |
DPPH |
en |
| dc.subject.other |
Folin-Ciocalteu |
en |
| dc.subject.other |
Phenolic antioxidant |
en |
| dc.subject.other |
Total antioxidant capacity |
en |
| dc.subject.other |
Antioxidants |
en |
| dc.subject.other |
Assays |
en |
| dc.subject.other |
Olive oil |
en |
| dc.title |
Comparison of different tests used in mapping the Greek virgin olive oil production for the determination of its total antioxidant capacity |
en |
| heal.type |
journalArticle |
en |
| heal.identifier.primary |
10.3989/gya.010508 |
en |
| heal.publicationDate |
2010 |
en |
| heal.abstract |
This study aims to map the total antioxidant capacity (TAC) of 50 Greek olive oil samples from the 2005-2006 season according to production region and cultivar and to compare the 2, 2'-azino-bis (3-ethylbenzo-thiazoline-6- sulfonic acid (ABTS), 2, 2-diphenyl-1-picrylhydrazyl radical (DPPH) and Folin-Ciocalteu tests for use with olive oil. Antioxidant capacities determined in the hydrophilic fraction range between 5.42 - 22.5 mM gallic acid Kg-1 olive oil for the ABTS method and 1.29 - 9.95 mM Kg-1 for the DPPH method while in total, olive oil TAC ranges between 77 - 177 mM Kg-1 as assessed by the DPPH method. The results of total phenol content range between 3.8 and 29.4 mM Kg-1 olive oil. Total phenol content correlates with total antioxidant capacity assessed in the hydrophilic fraction through the DPPH (r = 0.89) and the ABTS (r = 0.69) assays. The hydrophilic fraction DPPH values correlate significantly with the ABTS values (r = 0.81). However, the DPPH values for total olive oil correlate poorly with the ABTS assay, the Folin-Ciocalteu method and the DPPH assay in hydrophilic fraction. Although total phenolic content shows good correlation with ABTS and DPPH values and could serve as a useful indicator for olive oil antioxidant capacity, the use of a battery of tests contributes to better characterization of the antioxidant capacity of olive oil. |
en |
| heal.journalName |
Grasas y Aceites |
en |
| dc.identifier.issue |
1 |
en |
| dc.identifier.volume |
61 |
en |
| dc.identifier.doi |
10.3989/gya.010508 |
en |
| dc.identifier.spage |
45 |
en |
| dc.identifier.epage |
51 |
en |